IBM, Wells Fargo, JP MorganChase, Wyndham Hotels, TravelPort, Intel, Ernest & Young, Motorola, Lehman Brothers, American Express, American Airlines, Aetna, Accenture, Kodak, Marriot, McDonald's, Supervalu, Citi, UPS, AT&T, KPMG, Pepsico, Realogy, Intuit, Merck, Cisco, Coors Light, ING, Morgan Stanley, Hilton, Here, OfficeMax, Burger King, Southwest Airlines, Olivia, Starwood, CorCoran, Cigna, CVMSolutions, Deutsche Bank, Bank of America, Kimpton, Capital One, ERA Real Estate, FannieMae, Hyatt, TLC, Sotheby's Int'l Realty, Johnson & Johnson, Continental Airlines, Goldman Sachs, TRG, UBS, Wachovia, Century 21, Freddie Mac, Coldwell Banker, Coldwell Banker Commercial, glee, Xerox, Blue Cross of California, Cartus, FunMaps, Wells Fargo Home Mortgage, RSVP Vacations, Ramada Worldwide, Avis, gfn, NRT, Printing Methods, Pfizer, Sodexho, Albertson's, Hornbacher's, bigg's, SHOPPERS, Cub Foods, Lucky, Farm Fresh, Acme, Jewel-Osco, Save a-lot, Shop-n-Save, Star Market, Shaw's, Bristol Farms, W. Newell & Co. and believe it or not Wal Mart. There was a boycott on Wal Mart for this.
All these companies are listed right on the website of nglcc.org (National Gay and Lesbian Chamber of Commerce)